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Carnosine

Carnosine is a dipeptide of the amino acids beta-alanine and histidine that is abundant in muscle. The body makes it and also gets it from food.

Also listed as L-Carnosine

Weight ManagementLongevityOrgan FunctionCognitionCardiovascular

What it is studied for

The strongest rated effects first. Bars show the size of the effect, the letter grades the evidence, and each rating lists the studies behind it.

Blood sugarWeight ManagementModerateBNo linked study
Oxidative stressLongevityModerateBNo linked study
Eye HealthOrgan FunctionSmallCNo linked study
Brain FogCognitionSmallCNo linked study
Cholesterol balanceCardiovascularSmallCNo linked study
Blood pressureCardiovascularSmallCNo linked study
All 16 rated effectsGrouped by health goal, with the publications behind each rating

What is carnosine?

Carnosine consists of two amino acids, beta-alanine and histidine, and is abundant in muscle. The body makes it and also obtains it from food. Its antioxidant chemistry helps explain research interest, but a biological role does not establish the benefit of an extra capsule. 1

Why people take it

Cognition15.8%
Energy15.5%
Longevity14.4%
Immune Support13.1%
Essential Health12.7%
Fitness7.9%

SuppCo community snapshot, 2026-09-28. Reasons for use are not evidence that it works.

Questions people ask

Is carnosine made by the body?

Yes. Human tissues synthesize it from beta-alanine and histidine. 1

Does carnosine lower cholesterol?

The small metabolic meta-analysis found no significant cholesterol benefit. 2

What doses have researchers used?

The cognition review covered 100 to 2,000 mg daily for six weeks to 12 months, across different formulations. These are research exposures, not a recommended dose. 3

Sources

Further reading

Illustration for Carnosine.GuideCarnosine in skin care: effects and limits of the evidenceCarnosine is used as an antioxidant ingredient in serums and creams. What laboratory studies show and which clinical evidence is missing.Read the article